Shell for a smartphone



FIG. 1 is a back view of the shell for a smartphone;

FIG. 2 is a right view of the shell for a smartphone;

FIG. 3 is a left view of the shell for a smartphone;

FIG. 4 is a front view of the shell for a smartphone;

FIG. 5 is a top view of the shell for a smartphone;

FIG. 6 is a bottom view of the shell for a smartphone; and,

FIG. 7 is a perspective view from the back and bottom of the shell for a smartphone. 

CLAIM The ornamental design for a shell for a smartphone, as shown and described. 